A. O. Smith Corporation [AOS]
A123 Systems, Inc. [AONE]
ABB Ltd [ABB]
Advanced Battery Technologies, Inc. [ABAT]
Altra Holdings, Inc. [AIMC]
American Electric Technologies, Inc. [AETI]
AMETEK, Inc. [AME]
Arotech Corporation [ARTX]
Aura Systems, Inc. [AUSI.OB]
AZZ incorporated [AZZ]

Baldor Electric Company [BEZ]
Ballard Power Systems Inc. [BLDP]
Belden Inc. [BDC]

Capstone Turbine Corporation [CPST]
Catalina Lighting, Inc. [CALA.PK]
China BAK Battery, Inc. [CBAK]
Coleman Cable, Inc. [CCIX]

Daktronics, Inc. [DAKT]

Eaton Corporation [ETN]
Ener1, Inc. [HEV]
EnerLume Energy Management Corp. [ENLU.PK]
EnerSys Inc. [ENS]
Exide Technologies [XIDE]

Franklin Electric Co., Inc. [FELE]
FuelCell Energy, Inc. [FCEL]
Fushi Copperweld, Inc. [FSIN]

General Cable Corporation [BGC]
GrafTech International Ltd. [GTI]

Harbin Electric, Inc. [HRBN]
HLS Systems International, Ltd. [HOLI]
Hong Kong Highpower Technology, Inc. [HPJ]
Hydrogenics Corporation [HYGSD]

Lighting Science Group Corporation [LSCG.PK]
Littelfuse, Inc. [LFUS]

Magnetek, Inc. [MAG]

Nidec Corporation [NJ]

Oak Ridge Micro-Energy, Inc. [OKME.OB]

Plug Power Inc. [PLUG]
Powell Industries, Inc. [POWL]
PowerVerde, Inc. [PWVI.OB]
Profile Technologies, Inc. [PRTK.OB]

Raser Technologies, Inc. [RZ]
Regal Beloit Corporation [RBC]
Rockwell Automation, Inc. [ROK]

Servotronics, Inc. [SVT]
STR Holdings, Inc. [STRI]

Technology Research Corporation [TRCI]
Thomas & Betts Corporation [TNB]
TII Network Technologies, Inc. [TIII]
Tollgrade Communications, Inc. [TLGD]

Ultralife Corporation [ULBI]
UQM Technologies, Inc. [UQM]

Valence Technology, Inc. [VLNC]

Woodward Governor Company [WGOV]

Zareba Systems, Inc. [ZRBA]
Zoltek Companies, Inc. [ZOLT]